Self-Assembly of Au@Ag Nanorods Mediated by Gemini Surfactants for Highly Efficient SERS-Active Supercrystals

Authors

  • Sergio Gómez-Graña,

    1. Departamento de Química Física, Universidade de Vigo, Vigo, Spain
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  • Jorge Pérez-Juste,

    1. Departamento de Química Física, Universidade de Vigo, Vigo, Spain
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  • Ramón A. Alvarez-Puebla,

    1. ICREA (Catalan Institution for Research and Advanced Studies), Barcelona, Spain
    2. Department of Electronic Engineering, Universitat Rovira i Virgili, Tarragona, Spain
    3. Center for Chemical Technology of Catalonia, Tarragona, Spain
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  • Andrés Guerrero-Martínez,

    Corresponding author
    1. Departamento de Química Física I, Universidad Complutense, Madrid, Spain
    • ICREA (Catalan Institution for Research and Advanced Studies), Barcelona, Spain
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  • Luis M. Liz-Marzán

    Corresponding author
    1. BioNanoPlasmonics Laboratory, Donostia - San Sebastián, Spain
    2. Ikerbasque, Basque Foundation for Science, Bilbao, Spain
    • Departamento de Química Física, Universidade de Vigo, Vigo, Spain
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E-mail: llizmarzan@cicbiomagune.es, aguerrero@quim.ucm.es

Abstract

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The fabrication of supercrystals of standing core–shell gold–silver nanorods stabilized by gemini surfactants provides SERS substrates with high optical activity, large homogenous sensing areas, and the potential to maximize the SERS signal with respect to their gold nanorod supercrystal counterparts.

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